In my humble opinion:
They would be easier to type if there were Meet The videos for all them.
5w4 - Idiosyncratic/Leisurely/Dramatic
It's the devil's way now.
Meet the Engineer gave me a massive INTP tingling feeling down my spine, as did spy for INTJ. Sniper, ISTP (maybe), and Heavy ESTP (or possibly ISTP if you count his gun as an extension of himself)